post_install() {
  [ -d usr/share/icons/hicolor ] && [ -x usr/bin/gtk-update-icon-cache ] && gtk-update-icon-cache -q -t -f usr/share/icons/hicolor
  [ -x usr/bin/update-mime-database ] && update-mime-database usr/share/mime >/dev/null
}

post_upgrade() {
  post_install
}

post_remove() {
  post_install
}
